Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wang chun » tang chun, wong chun, wang hua
chun song » chung tong, hyun song, yun song
song dong » song chong, hong song, jeng dong
wing sun » liang sun, cong sun, nina sun
yan yuan » yan guan, fang yuan, nan yan
dong di » dong sin
sind » find, wind, kind

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing sun) OR (dong di)) ((yan yuan) OR (yang guang)) wang chun song dong (sin OR sind) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wing sun) OR (dong di)) ((yan yuan) OR (yang guang)) wang chun song dong (sin OR sind) ;*.